1975 A833 od, any useful parts for non od boxes

The two ratios are .71od and .73 od
They both come with the 1 x 23 input and the only one gear they share between them is the m/s low. Even the clusters are different. The two o/d gears , IIRC are 18tooth and 20 tooth.I have examples of both. The 18 toother shatters with just the tiniest too much input, you have to be very gentle with it. My teener took it out just like that!
I suppose it would be fine with a slanty or even a 2bbl teener, but my teener had a big TQ and TTIs. And I gotta admit I made the mistake of banging into it with pretty good throttle. I forgot what tranny I was shifting that day. That teener was a test mule of sorts, and it experienced at least 3 or 4 different trannys in 4 or 5 separate winters, sometimes with the GV.